This paper seeks to establish the mistakes in the development of American armored forces during the interwar peroid. It then analyzes the aspects of the U.S. Armored Force that made it unique and effective during combat in Western Europe. The Armored Force that landed in Normandy was different from any other force in the world. Its strengths were its tactical mobility, high quality equipment, flexible command and control, and unmatched lethality from combined arms coordination. When properly led, this force proved to be a decisive factor on the battlefield.